import Vue from "vue";
import Vuex from "vuex";
import getters from "./getters";
import createPersistedState from "vuex-persistedstate";

Vue.use(Vuex);

const modulesFiles = require.context("./modules", false, /\.js$/);

// you do not need `import app from './modules/app'`
// it will auto require all vuex module from modules file
const modules = modulesFiles.keys().reduce((modules, modulePath) => {
  // set './app.js' => 'app'
  const moduleName = modulePath.replace(/^\.\/(.*)\.\w+$/, "$1");
  const value = modulesFiles(modulePath);
  modules[moduleName] = value.default;
  return modules;
}, {});

const store = new Vuex.Store({
  modules,
  getters,
  // 解决刷新vuex状态丢失问题
  plugins: [
    createPersistedState({
      storage: window.sessionStorage,
      reducer(val) {
        return {
          // 只储存state中的assessmentData
          dict: val.dict
        };
      }
    })
  ]
});

export default store;
